Per the schedule at https://lfs.intuit.com/#/s/US/I
Historically has been released within ten days of final version availability
There was some late legislation this last year that may have impacted IRS's ability to get everything out timely. https://www.irs.gov/pub/irs-pdf/f1040es.pdf is still in draft.
As a ProSeries user I can vouch that they are good to go on this side of the railroad tracks. But I have to say that it is really odd when we are ahead of the game on anything.
and ex marks the spot where those rocks and anvils hit me.